Ever since our relationship has been getting more serious I'm tempted to ask.

but I'm scared cause he shows me a different side.
I found some old poetry he had written to an ex 4 years ago when he was in the military on a poetry website we both go to. He talked about a future, taking her as a wife, she was prego at the time and even tho it wasn't his he said he would have given her child the world and would be there for her.
I kno this is years ago, but I'm curious to know if he sees a future like that with me.
Because the side he shows me is different. He says he hates kids and doesn't want any or even get married till he's 30. He never even remotely has talked about the future. Except once when he said if we ever had kids he wouldn't change any diapers. We even had a scare once where I thought I was prego and we were waiting on the test results. And he asked me if I was if I was seriously going to keep it. Just by his reaction he gave me the impretion that he would either ask me to abort or wouldn't be there.
Sometimes it feels like I mite be wasteing my time in a guy which mite not even consider a future with me. And I hate feeling like that cause I really do love him and I see future with him...but he mite not.
I want to casually bring it up, just say "hey babe do you ever think about the future?" has anybody done this before with your boyfriends? Any advice?